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12-02-2010, 11:51 PM   #1
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LBA: Pentax 100mm f/2.8 WR Macro

I've begun the process of changing out my Pentax kit to include more weather-sealed lenses. First up was replacing my trusty Tamron 90mm f/2.8 macro with the Pentax 100mm f/2.8 WR macro. The first thing that struck me was the difference in size.

Upon first seeing the lens in store, I was quite amazed at how tiny this lens appeared. I was expecting the Pentax 100mm macro to be larger than the Tamron because of the WR and the additional 10mm in focal length. Much to my surprise, it was actually shorter AND thinner than the Tamron lens! To put things further into perspective, when placed next to this Pentax macro, my Canon EF 100mm f/2.8 USM macro appears absolutely Brobdingnagian!

See the difference in size for yourself:


Here's another shot of the lenses fully extended to 1:1 magnification. Note that the length of the Canon lens doesn't change, as it has an internal focusing mechanism.



I can't wait to start using this lens in the rain!

- Jason


Last edited by inferno10; 12-03-2010 at 12:35 AM. Reason: Fixed image links; darn you Flickr!
12-03-2010, 12:28 AM   #2
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We can't see the pics.
12-03-2010, 12:36 AM   #3
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Whoops! Guess Flickr doesn't like hot-linking images anymore. What the heck am I paying them for?!?

Should be fixed now.

- Jason
12-04-2010, 01:42 AM   #4
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Wow, it's a lot smaller!

And what do you think about image quality between the three?

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